{
  "id": "rewetting-v17",
  "status": "experimental_feature_retained_artwork_treatments_rejected",
  "material": {
    "model": "paper-brush-v3",
    "resolution": 384,
    "roughness": 0.64,
    "absorbency": 0.42
  },
  "recipeModule": "/sketch/techniques/water.js",
  "exports": [
    "softenWithWater({points,wetPoints,width,water,wait,id,pullDuration})",
    "dampPull({points,width,id,duration})"
  ],
  "output": "Array of ordinary brush/wait commands; dampPull returns one brush. Validate the complete scene with validateScene before rendering.",
  "steps": [
    "Keep the user's scene unchanged and work in a detached copy. Opt into paper-brush-v3 explicitly.",
    "Place the first point inside the colored edge and later points outside it. The path is an actual brush centerline, not a region boundary.",
    "Apply water, wait for reactivation, then draw the damp clean brush outward. Water alone does not replace color with white.",
    "Inspect the pre-water, post-water and post-pull images and material.rewetting/reservoir state. Stop if an unwanted pale groove or colored tail appears.",
    "Compare a second copy with the same operations under paper-brush-v2 to isolate the material change. Record failures as well as accepted edits."
  ],
  "examples": [
    "/sketch/experiments/rewetting-v17/v3-soft-edge.json",
    "/sketch/experiments/rewetting-v17/v3-gradient.json",
    "/sketch/experiments/rewetting-v17/v3-rewet.json"
  ],
  "limits": [
    "Rewet release rate 0.7, stained floor 0.3, threshold 0.08 and water scale 0.65 are uncalibrated constants, not measurements from a pigment manufacturer.",
    "Stain is an aggregate proxy, not actual pigment-specific chemistry. It remains part of fixed pigment and must not be counted twice in mass budgets.",
    "The reported released amount is cumulative internal transfer and may count the same color again after redeposition. It is not new pigment input.",
    "v3 lift collects only mobile pigment. It cannot directly erase a dry fixed deposit.",
    "Paper flow still uses diffusion; this does not implement pressure-driven water-film flow or calibrated blooms.",
    "The observer replays selected operations; it does not invent an account of hidden reasoning."
  ],
  "source": {
    "url": "https://eu.winsornewton.com/blogs/guides/how-to-lift-watercolour",
    "scope": "Primary practical guidance distinguishes staining and non-staining colors and wet-brush lifting. It does not specify our numerical coefficients."
  },
  "review": "/sketch/experiments/rewetting-v17/review.json",
  "resultsSummary": "乾いた色の再移動と淡い引き伸ばしは確認。境界には輪郭や抜けが残り、絵全体の品質向上は確認できない。元の作品を維持する。",
  "localExamples": [
    "/sketch/experiments/rewetting-v17/v3-gradient-local.json",
    "/sketch/experiments/rewetting-v17/v3-rewet-local.json"
  ]
}